Lifetime difference in B_s mixing: Standard Model and beyond

Details Lifetime difference in B_s mixing: Standard Model and beyond Lifetime difference in B_s mixing: Standard Model and beyond

2009-09-26

arxiv.org/abs/0909.4897v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 5 figures. To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726. Presented by Andriy

Scientific paper

We present a calculation of $1/m_b^2$ corrections to the lifetime differences of $B_s$ mesons in the heavy-quark expansion. We find that they are small to significantly affect $\Delta\Gamma$ $(B_s)$ and present the result for lifetime difference including non-perturbative $1/m_b$ and $1/m_b^2$ corrections. We also analyze the generic $\Delta B$ = 1 New Physics contributions to the lifetime difference of $B_s$ mesons and provide several examples

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